<template>
    <div id="tab-bar-item" @click="itemClick">
        <div class="item-icon" v-show="!isActive"><slot name="icon"></slot></div>
        <div class="item-active-icon" v-show="isActive"><slot name="active-icon"></slot></div>
        <div class="item-text" :style="activeStyle"><slot name="text"></slot></div>
    </div>
</template>

<script>
    export default {
        name: "TabBarItem",
        props:{
            link:{
                type:String,
                required:true
            }
        },
        computed: {
            isActive() {
                return this.$route.path.indexOf(this.link) !== -1
            },
            activeStyle() {
                return this.isActive ? {'color': 'black'} : {'color': '#aaa'}
            }
        },
        methods: {
            itemClick() {
                this.$router.replace(this.link)
            }
        }
    }
</script>

<style scoped>
    #tab-bar-item {
        flex: 1;
    }

    .item-icon img, .item-active-icon img {
        width: 24px;
        height: 24px;
        margin-top: 5px;
        vertical-align: middle;
    }

    .item-text {
        font-size: 12px;
        margin-top: 3px;
        color: #333;
    }
</style>